Perhaps you should try some spelling variations:
communications costs » communication costs, communications _
chapter information » computer information, change information, career information
developpement la » developpement de, developpement et, developpement du
4 developpement » de developpement, le developpement, et developpement
la afrique » l afrique, la fabrique, en afrique
set data » det data, pet data, sit data
3.2 set » 2.2 set, 3.2 sem, 3.2 smt
costs 4 » costs _, costs a, costs 4.2

You may be able to get more results by adjusting your search query.

• Adding a wildcard symbol may retrieve word variants: techniques chapter information 3.2 set data communications costs 4 developpement la afrique.*.